Re: Storing filehandles(for writing) in hashes doesn't work (Re: whilereach my $variable (FILEHANDLE) )
On 01/15/2007 11:21 PM, Michael Alipio wrote:
Hi,
Ok, seems like a pet logs is not a good example.:-)
Let me revise my story:
I have a logfile which contains different clients firewall's logs.
Let's say the log file is: firewall.log
Now each line in the logfile has a $deviceid string that identifies where or which client it came from.
What I did was to list down all of these clients in a file named deviceid.conf.
Let's say it contains: ('client_name' dash 'device_id')
client1 - 293u0sdfj
client2 - 8325kjsdf
client3 - kjldas8282
.
clientn - sdkfj28350
Having said that, my goals are:
1. read the firewall.log line by line.
if it see a particular device_id in $_, and it knows that that deviceid is for this
particular client (using the information found at deviceid.conf) it will
write that line into /client1/$date.log or /client2/$date.log etc.
By the way, our logs are being rotated such that it contains logs from 6:26 yesterday, to 6:25
today, so $date on the above was obtained by let's say getting the /date=(\S+)/ on the first line
entry of the log, let's say it reads 2007-01-10, so our $date will be 2007-01-10_11, so
the logfile for a particular client will be /client1/2007-01-10_11.log
Here is an example of a line in the logfile:
Jan 10 06:26:17 210.23.194.86 date=2007-01-10
time=06:30:14,devname=sccp_firewall,device_id=FWF60A1234566,log_id=00210100
01,type=traffic,subtype=allowed,pri=notice,vd=root;SN=14435461,duration=139,user=N/A,group=N/A,policyid=11,proto=6,service=7
500/tcp,status=accept,src=192.169.1.70,srcname=192.168.1.3,dst=192.169.1.17,dstname=192.169.1.17,src_int=internal,dst_int
=wan2,sent=144,rcvd=0,sent_pkt=3,rcvd_pkt=0,src_port=2354,dst_port=7500,vpn=N/A,tran_ip=0.0.0.0,tran_port=0,dir_disp=org,tra
n_disp=noop
The device_id in this log entry does not appear in the device id file
you showed above.
So far, I've been trying to use the code that was given to me but I'm still far
from my goal:
#!/usr/bin/perl
use warnings;
use strict;
my $logfile='firewall.log';
my $devices='deviceid.conf';
our %log;
##
# 1ST PART
open DEVICES, '', $devices or die Can't open $devices $!;
while ( my $device = DEVICES){
chomp $device;
($device) = $device =~ /(\S+)$/;
open( my $fh, '', $device.log) or die Can't open $device.log: $!;
$log{$device} = $fh;
}
close DEVICES;
#
So far I can understand that in the first part, the code will read the
deviceid.conf and create a file handle for writing for each device id, and
store these filehandles inside %log. But that is what I wanted to do, I want
to, as I wanted to write my logs into /clientN/date.log instead of
client's_deviceid.log. So I'm still trying to figure out this one.
/(\S+)$/ only matches the device-id; the client-id is thrown away. Don't
throw it away. Create a regular expression that captures the client id
and use the client-id to create the log file name.
Next:
# 2nd PART
my $re = '^\S+\s+(' . join( '|', keys %log ). ')';
open( IN, '', $logfile ) or die Can't open $logfile: $!;
while( my $line = IN ){
if( $line =~ m/$re/ ){
print $log{$1} $line;
}
}
###
The second part is what confuses me, especially the line with my $re, and also the
if($line =~ m/$re/)
As far as I can understand, the $re will contain a regexp with ('device_id1 |
device_id2 | device_id3 | device_idN'), so that whenever it sees any pattern
that match either of those device_ids, it will print it to say $log{device_idN}
which points to the file handle that writes to device_idN.log.
But this is not the case.
The line print $log{$1} $line; doesn't even work as if it cannot decode the
$log{$1}
You are correct, my $re creates a regular expression with all of the
device ids, and you are also correct that print $log{$1} $line does
not work. You must use print { $log{$1} } $line.
Useless use of a constant in void context at extractdevice.pl line 30.
Scalar found where operator expected at extractdevice.pl line 35, near } $line
(Missing operator before $line?)
syntax error at extractdevice.pl line 35, near } $line
If I comment those codes inside the while in that second part, the program will
successfully create emtpy device_id1.log, device_id2.log, etc. etc.)
Any idea what's wrong with this one?
My comments are above.
I wrote the program a completely different way. I think you should read
'deviceid.conf' and place the device-ids and client-ids into a hash
($clientids). Then open and start reading the logfile. Whenever you are
able to capture a device-id that is in the %clientids hash, construct a
filename to the desired output log file and append the input logfile
line to that output log file.
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Re: Storing filehandles(for writing) in hashes doesn't work (Re: whilereach my $variable (FILEHANDLE) )
Hi,
Ok, here's my code:
my $logfile='firewalllog';
my $devicefile='deviceid';
our %log;
open DEVICES, '', $devicefile or die Can't open $devicefile $!;
while (my $device DEVICES){
($device) = $device =~ /(\S+)$/;
open (my $fh, '', $device..log) or die Can't write to $device..log: $!;
$log{device} = $fh;
}
close DEVICES;
So I should be able to print to at least {$log{any_device_id}} right??
But using this:
print {$log{FWF60A1234566}} testing;
gives me:
Use of uninitialized value in ref-to-glob cast at extractdevice.pl line 20.
Can't use string () as a symbol ref while strict refs in use at
extractdevice.pl line 20.
Any idea what does the above means?
- Original Message
From: Mumia W. [EMAIL PROTECTED]
To: Beginners List beginners@perl.org
Sent: Tuesday, January 16, 2007 3:13:38 PM
Subject: Re: Storing filehandles(for writing) in hashes doesn't work (Re:
whilereach my $variable (FILEHANDLE) )
On 01/15/2007 11:21 PM, Michael Alipio wrote:
Hi,
Ok, seems like a pet logs is not a good example.:-)
Let me revise my story:
I have a logfile which contains different clients firewall's logs.
Let's say the log file is: firewall.log
Now each line in the logfile has a $deviceid string that identifies where or
which client it came from.
What I did was to list down all of these clients in a file named
deviceid.conf.
Let's say it contains: ('client_name' dash 'device_id')
client1 - 293u0sdfj
client2 - 8325kjsdf
client3 - kjldas8282
.
clientn - sdkfj28350
Having said that, my goals are:
1. read the firewall.log line by line.
if it see a particular device_id in $_, and it knows that that deviceid
is for this particular client (using the information found at
deviceid.conf) it will write that line into /client1/$date.log or
/client2/$date.log etc.
By the way, our logs are being rotated such that it contains logs from 6:26
yesterday, to 6:25 today, so $date on the above was obtained by let's say
getting the /date=(\S+)/ on the first line entry of the log, let's say it
reads 2007-01-10, so our $date will be 2007-01-10_11, so the logfile for a
particular client will be /client1/2007-01-10_11.log
Here is an example of a line in the logfile:
Jan 10 06:26:17 210.23.194.86 date=2007-01-10
time=06:30:14,devname=sccp_firewall,device_id=FWF60A1234566,log_id=00210100
01,type=traffic,subtype=allowed,pri=notice,vd=root;SN=14435461,duration=139,user=N/A,group=N/A,policyid=11,proto=6,service=7
500/tcp,status=accept,src=192.169.1.70,srcname=192.168.1.3,dst=192.169.1.17,dstname=192.169.1.17,src_int=internal,dst_int
=wan2,sent=144,rcvd=0,sent_pkt=3,rcvd_pkt=0,src_port=2354,dst_port=7500,vpn=N/A,tran_ip=0.0.0.0,tran_port=0,dir_disp=org,tra
n_disp=noop
The device_id in this log entry does not appear in the device id file
you showed above.
So far, I've been trying to use the code that was given to me but I'm still
far from my goal:
#!/usr/bin/perl
use warnings;
use strict;
my $logfile='firewall.log';
my $devices='deviceid.conf';
our %log;
##
# 1ST PART
open DEVICES, '', $devices or die Can't open $devices $!;
while ( my $device = DEVICES){
chomp $device;
($device) = $device =~ /(\S+)$/;
open( my $fh, '', $device.log) or die Can't open $device.log: $!;
$log{$device} = $fh;
}
close DEVICES;
#
So far I can understand that in the first part, the code will read the
deviceid.conf and create a file handle for writing for each device id, and
store these filehandles inside %log. But that is what I wanted to do, I want
to, as I wanted to write my logs into /clientN/date.log instead of
client's_deviceid.log. So I'm still trying to figure out this one.
/(\S+)$/ only matches the device-id; the client-id is thrown away. Don't
throw it away. Create a regular expression that captures the client id
and use the client-id to create the log file name.
Next:
# 2nd PART
my $re = '^\S+\s+(' . join( '|', keys %log ). ')';
open( IN, '', $logfile ) or die Can't open $logfile: $!;
while( my $line = IN ){
if( $line =~ m/$re/ ){
print $log{$1} $line;
}
}
###
The second part is what confuses me, especially the line with my $re, and
also the if($line =~ m/$re/)
As far as I can understand, the $re will contain a regexp with ('device_id1 |
device_id2 | device_id3 | device_idN'), so that whenever it sees any pattern
that match either of those device_ids, it will print it to say
$log{device_idN} which points to the file handle that writes to
device_idN.log.
But this is not the case.
The line print $log{$1} $line; doesn't even work as if it cannot decode the
$log{$1}
You are correct, my $re creates a regular expression with all of the
device ids, and you are also correct that print $log{$1} $line does
not work. You must use print { $log{$1} } $line.
Useless use of a constant in void
InterOperate between a cluster and a web server
Dear All, Currently we are developing an Integrated Web Server with a dedicated cluster to support the server. I need help to set up a web application that can manage the web server and our cluster. For example if the user is submitting a huge set of data to do some processing , the program should take care of the process and pass it on to the cluster and display the status of the job (que and other details). I know this is possible and people are doing it. It will be great, If any of the Linux/perl/ techies around can help me out with some help :)) We are using Ganglia as the server management tool. Web Server is apache running on CentOS4 . Thanks in Advance and Happy New Year to all... -- S Khadar
Re: Storing filehandles(for writing) in hashes doesn't work (Re: whilereach my $variable (FILEHANDLE) )
On 01/16/2007 04:02 AM, Michael Alipio wrote:
- Original Message
From: Mumia W. [EMAIL PROTECTED]
To: Beginners List beginners@perl.org
Sent: Tuesday, January 16, 2007 3:13:38 PM
Subject: Re: Storing filehandles(for writing) in hashes doesn't work (Re: whilereach
my $variable (FILEHANDLE) )
On 01/15/2007 11:21 PM, Michael Alipio wrote:
Hi,
Ok, seems like a pet logs is not a good example.:-)
Let me revise my story:
I have a logfile which contains different clients firewall's logs.
Let's say the log file is: firewall.log
Now each line in the logfile has a $deviceid string that identifies where or which client it came from.
What I did was to list down all of these clients in a file named deviceid.conf.
Let's say it contains: ('client_name' dash 'device_id')
client1 - 293u0sdfj
client2 - 8325kjsdf
client3 - kjldas8282
.
clientn - sdkfj28350
Having said that, my goals are:
1. read the firewall.log line by line.
if it see a particular device_id in $_, and it knows that that deviceid is for this
particular client (using the information found at deviceid.conf) it will
write that line into /client1/$date.log or /client2/$date.log etc.
By the way, our logs are being rotated such that it contains logs from 6:26 yesterday, to 6:25
today, so $date on the above was obtained by let's say getting the /date=(\S+)/ on the first line
entry of the log, let's say it reads 2007-01-10, so our $date will be 2007-01-10_11, so
the logfile for a particular client will be /client1/2007-01-10_11.log
Here is an example of a line in the logfile:
Jan 10 06:26:17 210.23.194.86 date=2007-01-10
time=06:30:14,devname=sccp_firewall,device_id=FWF60A1234566,log_id=00210100
01,type=traffic,subtype=allowed,pri=notice,vd=root;SN=14435461,duration=139,user=N/A,group=N/A,policyid=11,proto=6,service=7
500/tcp,status=accept,src=192.169.1.70,srcname=192.168.1.3,dst=192.169.1.17,dstname=192.169.1.17,src_int=internal,dst_int
=wan2,sent=144,rcvd=0,sent_pkt=3,rcvd_pkt=0,src_port=2354,dst_port=7500,vpn=N/A,tran_ip=0.0.0.0,tran_port=0,dir_disp=org,tra
n_disp=noop
The device_id in this log entry does not appear in the device id file
you showed above.
So far, I've been trying to use the code that was given to me but I'm still far
from my goal:
#!/usr/bin/perl
use warnings;
use strict;
my $logfile='firewall.log';
my $devices='deviceid.conf';
our %log;
##
# 1ST PART
open DEVICES, '', $devices or die Can't open $devices $!;
while ( my $device = DEVICES){
chomp $device;
($device) = $device =~ /(\S+)$/;
open( my $fh, '', $device.log) or die Can't open $device.log: $!;
$log{$device} = $fh;
}
close DEVICES;
#
So far I can understand that in the first part, the code will read the
deviceid.conf and create a file handle for writing for each device id, and
store these filehandles inside %log. But that is what I wanted to do, I want
to, as I wanted to write my logs into /clientN/date.log instead of
client's_deviceid.log. So I'm still trying to figure out this one.
/(\S+)$/ only matches the device-id; the client-id is thrown away. Don't
throw it away. Create a regular expression that captures the client id
and use the client-id to create the log file name.
Next:
# 2nd PART
my $re = '^\S+\s+(' . join( '|', keys %log ). ')';
open( IN, '', $logfile ) or die Can't open $logfile: $!;
while( my $line = IN ){
if( $line =~ m/$re/ ){
print $log{$1} $line;
}
}
###
The second part is what confuses me, especially the line with my $re, and also the
if($line =~ m/$re/)
As far as I can understand, the $re will contain a regexp with ('device_id1 |
device_id2 | device_id3 | device_idN'), so that whenever it sees any pattern
that match either of those device_ids, it will print it to say $log{device_idN}
which points to the file handle that writes to device_idN.log.
But this is not the case.
The line print $log{$1} $line; doesn't even work as if it cannot decode the
$log{$1}
You are correct, my $re creates a regular expression with all of the
device ids, and you are also correct that print $log{$1} $line does
not work. You must use print { $log{$1} } $line.
Useless use of a constant in void context at extractdevice.pl line 30.
Scalar found where operator expected at extractdevice.pl line 35, near } $line
(Missing operator before $line?)
syntax error at extractdevice.pl line 35, near } $line
If I comment those codes inside the while in that second part, the program will
successfully create emtpy device_id1.log, device_id2.log, etc. etc.)
Any idea what's wrong with this one?
My comments are above.
I wrote the program a completely different way. I think you should read
'deviceid.conf' and place the device-ids and client-ids into a hash
($clientids). Then open and start reading the logfile. Whenever you are
able to capture a device-id that is in the %clientids hash, construct a
filename to the desired output
Mail Attachment
Hi
I am trying you to use this piece of code to send mail frm the HTML
form. But I am not getting any mail as well as no error message. I am
using sendmail to send the attachement. Any help is nice
my $picture=PATH OBTAINED FROM THE HTML FORM for example; c:/a.jpg
my $sendmailpath=/usr/sbin/sendmail;
open (SENDMAIL, | $sendmailpath -t);
print SENDMAIL To: $to_address\n;
print SENDMAIL From: $from_address\n;
print SENDMAIL Subject: $subject\n\n;
print SENDMAIL $message_body;
print SENDMAIL \n\n;
open(FILE, uuencode $picture $picture|);
while(FILE) { print SENDMAIL; };
close(FILE);
close(SENDMAIL);
Thanks
Anish
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Re: Mail Attachment
First -- your porgram is nowhere NEAR complete ... I see nowhere that $to_address, $from_address, etc are populated. Read the posting guidelines and try again. That being said, there are some glaring deficiencies that can be pointed out even without the complete program. my $picture=PATH OBTAINED FROM THE HTML FORM for example; c:/a.jpg my $sendmailpath=/usr/sbin/sendmail; open (SENDMAIL, | $sendmailpath -t); print SENDMAIL To: $to_address\n; print SENDMAIL From: $from_address\n; print SENDMAIL Subject: $subject\n\n; print SENDMAIL $message_body; print SENDMAIL \n\n; Don't pipe to sendmail -- use one of the myriad convenient Perl modules for sending email, with attachments etc. MIME::Lite ismy favorite, there are many others just as good. Try a few and pick the one that fits your needs. If $picture is a path obtained from a web form, it is probably a path on the users computer, not your webserver (i.e. I find it near impossible to imagine a computer whose sendmail is in /usr/sbin yet has a directory in Apache's server_root named 'c:' and in this directory is a file named a.jpg ). If you're not already (see that thing above about 'complete program') using CGI.pm you should be, and you should go read the perldoc for the file upload section a dozen times until you understand completely -- it is complicated and you'll get it wrong the first few times. open(FILE, uuencode $picture $picture|); Should you fall in love with MIME::Lite you won't need to fork out to uuencode. IF you insist on uuencoding (uuencode? did I fall into a timewarp to 1992?) yourself, it would be a good idea to include the complete path, or at least show us that you explicitly set the path. ALWAYS CHECK RETURN STATUS ON OPEN AND CLOSE. A lot of people ignore close() errors on files more often than they should, even me - it's a common venial sin, but whenever reading from or writing to pipes ... well, just do it. You'd have surely noticed that uuencode failed catostrophically because it couldn't find a file with the bizarrely formed filename c:/a.jpg in the current working directory. Thanks Anish -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] http://learn.perl.org/ -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] http://learn.perl.org/
Get summery of a jpeg file
A friend asked me to write a program for a WIN32 OS. When this person's camera takes a picture it populates the file summery with information (right click on the file, go to the summary tab). One field that I need to get is called Date Picture Taken. I then need to rename the pictures with something incremented by 1 and this field. Is there a cpan module that can do this? Thanks -T -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] http://learn.perl.org/
Re: Get summery of a jpeg file
A friend asked me to write a program for a WIN32 OS. When this person's camera takes a picture it populates the file summery with information (right click on the file, go to the summary tab). One field that I need to get is called Date Picture Taken. I then need to rename the pictures with something incremented by 1 and this field. Is there a cpan module that can do this? Before you asked us, you CERTAINLY did a search of CPAN for JPEG and Info, right? How did Image::MetaData::JPEG fail to meet your needs? It's huge, it's complicated, and the documentation is hard to read, but Image Magick (which comes with perl bindings) can do anything with an image that can be done, including getting the info block out of a JPEG. -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Lawrence Statton - [EMAIL PROTECTED] s/aba/c/g Computer software consists of only two components: ones and zeros, in roughly equal proportions. All that is required is to sort them into the correct order. -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] http://learn.perl.org/
Re: Get summery of a jpeg file
--- Gallagher, Tim F (NE) [EMAIL PROTECTED] wrote: A friend asked me to write a program for a WIN32 OS. When this person's camera takes a picture it populates the file summery with information (right click on the file, go to the summary tab). One field that I need to get is called Date Picture Taken. I then need to rename the pictures with something incremented by 1 and this field. Is there a cpan module that can do this? http://search.cpan.org/~bettelli/Image-MetaData-JPEG-0.15/ That's the first hit off search.cpan.org for 'jpeg'. There are many more available. Cheers, Ovid -- Buy the book -- http://www.oreilly.com/catalog/perlhks/ Perl and CGI -- http://users.easystreet.com/ovid/cgi_course/ -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] http://learn.perl.org/
Hash variable is not imported?? (Re: Storing File Handles for writing)
Hi Mumia,
I think this one is closer to my goal.
#!/usr/local/bin/perl
use warnings;
use strict;
my $logfile='fortilog';
my $devicefile='deviceid';
our %clientdevice;
open DEVICES, '', $devicefile or die Can't open $devicefile $!;
while (DEVICES){
(my $client) = $_ =~ /^(\S+\s+)/;
(my $device) = $_ =~ /(\S+)$/;
$clientdevice{$device} = $client;
}
close DEVICES;
open( LOGFILE, '', $logfile ) or die Can't open $logfile: $!;
while(my $log = LOGFILE ){
(my $deviceid) = $log =~ /device_id=(\S+?),/;
if (exists $clientdevice{$deviceid}){
open FH, '', $clientdevice($deviceid) or die $!;
print FH $log;
close FH;
}
}
The if exist line keeps on complaining:
Variable $clientdevice is not imported at extractdevice.pl line 23.
Global symbol $clientdevice requires explicit package name at
extractdevice.pl line 23.
syntax error at extractdevice.pl line 23, near $clientdevice(
Do you know what does this tell?
For those unaware about my goal:
I have a logfile that contains each of our client's firewall logs:
A sample line looks like this.
Jan 10 06:26:17 210.23.194.86 date=2007-01-10
time=06:30:14,devname=sccp_firewall,device_id=FWF60A123456,log_id=002101000
1,type=traffic,subtype=allowed,pri=notice,vd=root;SN=14435461,duration=139,user=N/A,group=N/A,policyid=11,proto=6,service=750
0/tcp,status=accept,src=192.168.16.23,srcname=192..168.23.5,dst=192.168.1.17,dstname=192.168.1.17,src_int=internal,dst_int=wa
n2,sent=144,rcvd=0,sent_pkt=3,rcvd_pkt=0,src_port=2354,dst_port=7500,vpn=N/A,tran_ip=0.0.0.0,tran_port=0,dir_disp=org,tran_di
sp=noop
Then I made a deviceid file which contains:
client1 - FWF60A123456
client2 - FG200A123456
client3 - FS300A123456
The goal is to read the logfile line by line, and if it sees that device_id
exists in the hash that was created after reading deviceid file, then it will
write that particular log entry in, let's say client1.log.
Finding fabulous fares is fun.
Let Yahoo! FareChase search your favorite travel sites to find flight and hotel
bargains.
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Re: Mail Attachment
Lawrence Statton XE2/N1GAK wrote: First -- your porgram is nowhere NEAR complete ... I see nowhere that $to_address, $from_address, etc are populated. Read the posting guidelines and try again. That being said, there are some glaring deficiencies that can be pointed out even without the complete program. In addition to Lawrence's excellent points, I might suggest using Mail::Sender::Easy You can simply do email(\%hash_that_describes_the_email) or die $@; where \%hash_that_describes_the_email lets you structure it however you need, including attachments of any sort in any disposition etc... It will make your life mch easier... -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] http://learn.perl.org/
Re: Hash variable is not imported?? (Re: Storing File Handles for writing)
Michael Alipio wrote:
Hi Mumia,
It's John but hello anyway.
I think this one is closer to my goal.
#!/usr/local/bin/perl
use warnings;
use strict;
my $logfile='fortilog';
my $devicefile='deviceid';
our %clientdevice;
open DEVICES, '', $devicefile or die Can't open $devicefile $!;
while (DEVICES){
(my $client) = $_ =~ /^(\S+\s+)/;
(my $device) = $_ =~ /(\S+)$/;
$clientdevice{$device} = $client;
}
close DEVICES;
open( LOGFILE, '', $logfile ) or die Can't open $logfile: $!;
while(my $log = LOGFILE ){
(my $deviceid) = $log =~ /device_id=(\S+?),/;
if (exists $clientdevice{$deviceid}){
open FH, '', $clientdevice($deviceid) or die $!;
Change the parentheses () to braces {} there:
open FH, '', $clientdevice{$deviceid} or die $!;
print FH $log;
close FH;
}
}
The if exist line keeps on complaining:
It is actually the line after that one that has the problem.
Variable $clientdevice is not imported at extractdevice.pl line 23.
Global symbol $clientdevice requires explicit package name at
extractdevice.pl line 23.
syntax error at extractdevice.pl line 23, near $clientdevice(
Line 23 is:
open FH, '', $clientdevice($deviceid) or die $!;
John
--
Perl isn't a toolbox, but a small machine shop where you can special-order
certain sorts of tools at low cost and in short order. -- Larry Wall
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Re: Hash variable is not imported?? (Re: Storing File Handles for writing)
On 1/16/07, Michael Alipio [EMAIL PROTECTED] wrote: Variable $clientdevice is not imported at extractdevice.pl line 23. Since you were good enough to use strict (thank you!) Perl is pointing out that you never declared any $clientdevice variable before using it: open FH, '', $clientdevice($deviceid) or die $!; Hope this helps! --Tom Phoenix Stonehenge Perl Training -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] http://learn.perl.org/
$[ (was: Re: Converting to capital only one word in a line)
Jay Savage schreef: There are, however, modules that modify all sorts of internal variables and symbol tables to enhance efficiency and work magic, and there is always a slight chance that someone, somewhere has messed with $[ and not told you about it. If they have, you'll end with unexplained and nearly impossible to diagnose fencepost errors in your code if you expect that $#array and @array -1 will always return the same value, and $array[$#array] and [EMAIL PROTECTED] -1] will always refer to the same item. But As of release 5 of Perl, assignment to $[ is treated as a com- piler directive, and cannot influence the behavior of any other file.. So it only influences the current file, onwards from where it is set. $ perl -Mstrict -MData::Dumper -wle' my @x; $[ = -1; $x[0] = abc; $[ = 1; $x[1] = cde; print Dumper [EMAIL PROTECTED] ' $VAR1 = [ 'cde', 'abc' ]; -- Affijn, Ruud Gewoon is een tijger. -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] http://learn.perl.org/
Re: CPAN installs
Wiggins d'Anconia wrote: Kevin Viel wrote: I am attempting to install modules on a Solaris v10 computer for which I do not have root privileges. I see in MyConfig.pm that the build directory is local: 'build_dir' = q[/home/kviel/.cpan/build] Where does it install the (built) module? Thank you, Kevin The build_dir doesn't mean a lot in this case, assuming you are asking what I think you are asking. Instead you want to specify an install location in the makepl_arg and or mbuildpl_arg settings. For instance, makepl_arg = LIB=~/local/lib PREFIX=~/local/lib mbuildpl_arg = --install_base /home/user/local/lib Check perldoc CPAN for information about 'o conf'. HTH, http://danconia.org Thanks Wiggins. I attempted to use o conf scalar option value, but did not seem to have success. In particular, I was unsure of how to use: o conf list option [unshift|push|splice] list It seems I'd need to use this since I had LIB and PREFIX. Could someone provide an example? So, I used o conf init and I have the following in my MyConfig.pm: 'make_arg' = q[LIB=~/local/lib PREFIX=~/local/lib], 'make_install_arg' = q[--install_base /home/kviel/local/lib], 'makepl_arg' = q[LIB=~/local/lib PREFIX=~/local/lib], but still obtain an apparent failure: Failed Test Stat Wstat Total Fail Failed List of Failed --- base/message.t 952 2.11% 86 89 html/form-param.t 2 51224 48 200.00% 1-24 html/form.t 2 512 122 244 200.00% 1-122 local/autoload-get.t11 100.00% 1 local/autoload.t11 100.00% 1 local/get.t 2 512 24 200.00% 1-2 local/http-get.t 206 30.00% 1-2 5-7 20 local/http.t 186 33.33% 1-2 5-7 18 robot/ua-get.t 82 25.00% 3 5 robot/ua.t 72 28.57% 3 5 Failed 10/30 test scripts, 66.67% okay. 168/799 subtests failed, 78.97% okay. make: *** [test] Error 29 /usr/local/bin/make test -- NOT OK Running make install make test had returned bad status, won't install without force I used: cpan install LWP::Simple Thanks for any help or advice. Kevin -- Kevin Viel Department of Genetics [EMAIL PROTECTED] Southwest Foundation for Biomedical Research phone: (210)258-9884 P.O. Box 760549 fax:(210)258-9444 San Antonio, TX 78245-0549 Kevin Viel PhD Candidate Department of Epidemiology Rollins School of Public Health Emory University Atlanta, GA 30322 -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] http://learn.perl.org/
Re: Get summery of a jpeg file
Before you asked us, you CERTAINLY did a search of CPAN for JPEG and Info, right? How did Image::MetaData::JPEG fail to meet your needs? It's huge, it's complicated, and the documentation is hard to read, but Image Magick (which comes with perl bindings) can do anything with an image that can be done, including getting the info block out of a JPEG. -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- Lawrence Statton - [EMAIL PROTECTED] s/aba/c/g Did YOU assume that the OP knew about CPAN. I know when I had my first interest in Perl, I had NO IDEA of who or what CPAN was, let alone that it existed Shame on you for flaming on a *BEGINNER* mailing list. (Not that there have been some exceptions...)
Re: Hash variable is not imported?? (Re: Storing File Handles for writing)
Hi John!
- Original Message
From: John W. Krahn [EMAIL PROTECTED]
To: Perl Beginners beginners@perl.org
Sent: Tuesday, January 16, 2007 8:15:36 AM
Subject: Re: Hash variable is not imported?? (Re: Storing File Handles for
writing)
open( LOGFILE, '', $logfile ) or die Can't open $logfile: $!;
while(my $log = LOGFILE ){
(my $deviceid) = $log =~ /device_id=(\S+?),/;
if (exists $clientdevice{$deviceid}){
open FH, '', $clientdevice($deviceid) or die $!;
Change the parentheses () to braces {} there:
Holly cow! Sorry about this one. I shouldn't have done this on a putty
terminal, my mistake, can't spot the difference between () and {}.
Thank you very much John!
You're a certified perl guru! :-)
open FH, '', $clientdevice{$deviceid} or die $!;
print FH $log;
close FH;
}
}
The if exist line keeps on complaining:
It is actually the line after that one that has the problem.
Variable $clientdevice is not imported at extractdevice.pl line 23.
Global symbol $clientdevice requires explicit package name at
extractdevice.pl line 23.
syntax error at extractdevice.pl line 23, near $clientdevice(
Line 23 is:
open FH, '', $clientdevice($deviceid) or die $!;
John
--
Perl isn't a toolbox, but a small machine shop where you can special-order
certain sorts of tools at low cost and in short order. -- Larry Wall
--
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
http://learn.perl.org/
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any way to redirect output from a .pl script to a log file
Hello All:
Is there a way to re-direct the output of a perl script to a log file,
from within the perl script? I'm looking for the perl equivalent of the
following:
{
command 1
command 2
command 3
} 2 ${LOG} 12
which would redirect anything written to STDOUT and STDERR, by commands
1,2, 3, to the logfile in a unix shell script.
Janeen
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Re: any way to redirect output from a .pl script to a log file
Hi Janeen,
To redirect STDOUT and STDERR, simply open them for writing with
whatever file name you want to log to. For example
#!/usr/bin/perl
print I'm written to the consonle\n;
open STDOUT, '', 'log.txt';
print I'm written to a log file\n;
Hope that helps.
-Jason
On 1/16/07, Janeen [EMAIL PROTECTED] wrote:
Hello All:
Is there a way to re-direct the output of a perl script to a log file,
from within the perl script? I'm looking for the perl equivalent of the
following:
{
command 1
command 2
command 3
} 2 ${LOG} 12
which would redirect anything written to STDOUT and STDERR, by commands
1,2, 3, to the logfile in a unix shell script.
Janeen
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For additional commands, e-mail: [EMAIL PROTECTED]
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--
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Re: Get summery of a jpeg file
Omega 1911 wrote in part: Did YOU assume that the OP knew about CPAN. I know when I had my first interest in Perl, I had NO IDEA of who or what CPAN was, let alone that it existed Since the OPs question included, Is there a cpan module that can do this? I think it is not unfair to assume that he knew about the existance of cpan. Furthermore, the posting guidelines are included here frequently enough that ignorance is of feeble excuse... Had OPs request even been phrased as I searched CPAN for JPEG and Info and there were dozens of modules, and I'm lost as to which is the best for my seemingly simple needs -- does anyone here have a favorite and why?, it would have been far superior. -- Lawrence Statton - [EMAIL PROTECTED] s/aba/c/g Computer software consists of only two components: ones and zeros, in roughly equal proportions. All that is required is to place them into the correct order. -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] http://learn.perl.org/
Re: Get summery of a jpeg file
On 01/16/2007 10:18 PM, Lawrence Statton XE2/N1GAK wrote: Omega 1911 wrote in part: Did YOU assume that the OP knew about CPAN. I know when I had my first interest in Perl, I had NO IDEA of who or what CPAN was, let alone that it existed Since the OPs question included, Is there a cpan module that can do this? I think it is not unfair to assume that he knew about the existance of cpan. Furthermore, the posting guidelines are included here frequently enough that ignorance is of feeble excuse... [...] Where are the posting guidelines for this mailing list, [EMAIL PROTECTED] -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] http://learn.perl.org/
